Refactor: Improve validation schemas

src/components/auth/TOTPSetup.tsx

@@ -220,6 +220,7 @@ export function TOTPSetup() {
                 id="verificationCode"
                 value={verificationCode}
                 onChange={(e) => setVerificationCode(e.target.value)}
+                onPaste={(e) => e.preventDefault()}
                 placeholder="000000"
                 maxLength={6}
                 className="text-center text-lg tracking-widest font-mono"